OpenAI is streamlining its AI model lineup, retiring popular models like GPT-4 and GPT-4.5, all in anticipation of the launch ...

Turbo API, which initially powered ChatGPT, offering developers an optimized way to integrate AI features into popular apps.

OpenAI launches GPT-4.1 with improved coding, long-context support, and updated data. Available via API only, it outperforms ...

It is a well-known fact that different model families can use different tokenizers. However, there has been limited analysis on how the process of “tokenization” itself varies across these tokenizers.

Sam Altman also said OpenAI is no longer "compute-constrained" on the best models it can produce.

When ChatGPT first gained popularity in 2022, GPT-3.5 was the default model. In March 2023, the more advanced GPT-4 replaced it. Since then, both models have been lapped by a much more capable GPT ...

OpenAI says it'll soon wind down GPT-4.5, its largest-ever AI model, in its API only months after releasing it.

ChatGPT’s latest multimodal AI model comes as OpenAI kicks GPT-5 launch down the road. ChatGPT’s latest multimodal AI model comes as OpenAI kicks GPT-5 launch down the road. OpenAI has ...

GPT-4.5, launched in February, is OpenAI's most powerful model yet, the company said. Its breakthroughs would make rebuilding GPT-4 much easier. Building GPT-4 took a lot of people. Now ...